Ventilator.



W. G. GAGNE.

VENTILATOR. APPLIUAT-ION FILED JUNE 22, 1908.

Patented May 4, 1909.

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' WILLIAM G. GAGNE, or PORTLAND, MAINE.

VENTILATOR.

Specification of Letters Patent.

Application filed June 22, 1908.

Patented May 4, .1909.

Serial No. 439,647.

To all whom it may concern;

Be it known that I, WILLIAM G. GAGNE, a citizen of the United States, residing at Portland, in the county of Cumberland and State of Maine, have invented a new and useful Ventilator, of which the following is a specification.

This invention relates to improvements in ventilators. Its object is to provide a ventilator, simple and cheap in construction and adapted to give a good draft whichever way the wind blows. It is also designed to-prevent the escape of cinders and to prevent snow or water falling into the chimney.

In the drawings herewith accompanying and making part of this application, Figure 1 is a transverse vertical sectional view of a chimney and my improved ventilator showing one form of the cinder guard; Fig. 2 is a similar view of my invention showing a combined cinder, water and snow guard; and 3 is a vertical sectional view taken on a line at right angles to the section shown in 1, showing spacing blocks added.

Fi ame letters of reference refer to like parts.

. In said drawings A represents a pipe or chimney provided with a. spherical top B composed of two hollow hemispheres united at the horizontal medial line C. These hemispheres are provided with a vertically disposed series of draft openings D and intermediate connecting spaces E integral with the hemispheres. The construction of this top is made simple and cheap by uniting the adjacent edges of the hemispheres in any convenient manner and the hemispheres being unbroken except by the draft openings are very strong and durable. A projects upwardly some distance into the bottom of the lower hemisphere as seen at F.

Surrounding the hemispheres, spaced apart therefrom and positioned opposite the draft openings, is a shield G somewhat wider than the diameter of said openings. This shield has its lower extremities secured to the chimney below the hemispheres as seen at H and is supported at the top by a bolt I passing through the shield and the hemisphere, and within the hemisphere is mounted a cinder guard K which may consist of a curved band of wire mesh, as shown in Figs. 1 and 3, positioned directly adjacent the draft openings and spaced apart therefrom. The lower ex-' tremities are attached to the chimney and its The chimney upper end is supported by means of bolt I. The several parts, hemis here, shield and guard are thus held in re ative position .by blocks J interposed between the upper hemisphereand the shield and the hemisphere and the guard respectively, thus preventing bending or displacement of the parts. Instead of the wire mesh shown in Fig. 1 the guard may be solid and trough shaped on the outside, as shown in Fig. 2, so that any water or snow assing through the draft openings will col ect in the trough and run down on the outside of the chimney and thence through 0 enings L in the lower hemisphere near the 0 im ney.

Having thus described my invention and its use I claim 1. A ventilator of spherical form having a series of draft openings therein vertically disposed around said spherical form and spaced apart from each other, a shield outside of and spaced apart from said spherical form and a guard inside of and spaced apart from said spherical form, said shield and guard being adjacent said openings.

2. A ventilator of spherical form having a series of draft openings vertically disposed around said spherical form and spaced apart from each other and a cinder guard mounted inside of said sphere adjacent to said draft openings and spaced apart therefrom.

3. A ventilator of spherical form having a series of vertically disposed draft openings therein spaced apart from each other and a combined cinder and snow guard mounted within said sphere adjacent said openings and spaced apart therefrom, said guard being trough-shaped on its outside.

4:. A ventilator of spherical form, a series of vertically disposed draft openings therein,

a shield outside thereof, a cinder guard inside thereof, each spaced apart therefrom,

and a bonding bolt passing through the shield, ventilator and guard and spacing blocks interposed between the several parts.

In testimony whereof, I have signed my name to this specification in presence of two subscribing witnesses this 18th day of June, 1908.

WILLIAM G. GAGNE.

In presence of ELGIN O. VERRILL, MARION RIoHARDs. 

